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3.3.5 WIRING THE INVERTER TO THE BATTERIES
WARNING: Lethal currents will be present if the positive and negative cables attached
to the battery bank touch each other. During the installation and wiring process, ensure
the cable ends are insulated or covered to prevent shorting the cables.
WARNING: DO NOT connect the DC Wires from the battery bank to the GP-IC-ISW until all
the DC and AC wiring is complete and the AC overcurrent protection has been installed.
The GP-SW1500TS comes in a 12V version only, so the battery bank must be wired in series,
parallel, or series-parallel to provide the correct voltage: 12V. The interconnecting wires between
the individual batteries must be sized and rated exactly the same as those used between the
battery bank and Inverter. To ensure the best performance from your Inverter system, batteries
should be the same size, type, rating and age. Do not use old or untested batteries.
DC Positive and Negative Wires
• Connect the negative cable from the battery bank negative terminal to the
Inverters negative terminal. Mount the DC circuit breaker or fuse assembly and
leave open (no power to the GP-SW1500TS). Connect the positive cables from
the circuit breaker / fuse to the battery bank and to the Inverters positive terminal.
•
Ensure the DC wire connections are flush on the surface of the DC terminals
and the hardware used to hold these connections are stacked correctly. Verify
all DC connections are secured tightly.
3.3.6 DC GROUNDING
To protect against electrical shock hazards the GP-SW1500TS metal chassis must be connected
to the DC grounding system. The DC grounding system is sometimes referred to as the Earth
ground or another designated ground. For example on an RV, the metal frame of the RV is
designated as the negative DC ground / RV ground. The DC ground wire connection on the
GP-SW1500TS is used to connect the exposed chassis of the Inverter to the DC grounding
system. Use copper wire that is either bare or provided with green insulation. The size of this
conductor should be coordinated with the size of the over-current devices used.
DC grounding involves proper grounding of the negative of the battery, the DC panel and the
DC side of the GP-SW1500TS. The DC panel is normally used to connect the batteries and
distribute DC power to the Inverter and to the other DC loads. A common earth ground should
be used to bond the Inverter, negative bus bar and the negative battery terminal. All connec-
tions must be tight against bare metal. Use star washers to penetrate paint and corrosion.
INSTALLATION
